Well, not quite sure what you mean by "vary the output on each of the 6 counts".

A while back, I drew up a schematic for a fellow who wanted a timer circuit that could change pulsewidths on every count. Didn't use a 555 timer, but a 4093 Schmitt-trigger NAND gate as an astable multivibrator, with a 4017 Johnson counter to select different pulsewidths for the next time duration.